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I believe the sound equipment in any PowerPC-based Macintosh should be sufficient (can't speak for clones).

For voiceprint to work, you need a PlainTalk microphone, which may have come with your Performa. Other high-quality microphones may work, but I can't guarantee it.

- Scott

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Scott Stevenson
Contributing Editor,
MacNN

Eddie

Guest

Status:

Oct 24, 1999, 07:16 AM

Thanks for the info, I don't have a mic at the minute, which brings up another problem - which ones will work on my system? I've tried the mic from older systems, such as LCII, but they didn't work, i've also tried a standard PC mic, a normal voice mic but none of these works - i know my sound input socket works because it will record from any minijack source. The sound input quality is 22.050 khz.

Also currently i use RAM doubler to push my 40mb of real RAM upto 80mb, i know RAM doubler wont work with OS 9, so would VM be ok?

You don't get to choose the audio particulars of your voice print. But the "wizard" that takes your voiceprint samples will prompt you if your sample has insuffient level, is cut off too soon, etc.

Although the utility verified that I had successfully recorded a voiceprint sample (and checked it right after), any subsequent attempts to actually use it (on my Wall St.) to log in failed, requiring a typed-in p'word.

I'm currently running a PowerMac 6500/250. I installed OS9 this weekend and proceeded to try the voice print reconition. After about 10 trys to record my voice print, I finally got all 4 versions recorded. I promptly tested the voice print and it accepted me. I then went to log on to the system. And out of 10 times trying to login, I've only gotten accepted once, all other times I had to type my password in. I'm using the plaintalk microphone that came with the 6500/250. Most of the time when I was recorded my voice it told me I was too loud. Is there anyway to reduce the level of the microphone. Also based on my experience, my guess is that this might work better on a G3/G4 system. I know I'm pushing the limits of my 6500/250(603ev) system.

About the sampling rate: I expect that the voice verification recordings are done at a sampling rate lower than 44.1kHz. When it comes to voice, most of the information is at low frequencies - the phone system takes this into account and that's why our modem speeds are limited. If the recordings _are_ done at 44.1kHz, they are probably filtered and downsampled before the real analysis is done, so a lower initial sampling won't speed things up.